The temperature on July 30, 1884 was about 19.0 °C. The air pressure was 2 kgf/m2 and came mainly from the north-northwest. The airpressure was 77 cm mercury. The atmospheric humidity was 51%. Source: KNMI
In The Netherlands , there was from April 23, 1884 to April 21, 1888 the cabinet Heemskerk, with Mr. J. Heemskerk Azn. (conservatief) as prime minister.
February 19 » More than sixty tornadoes strike the Southern United States, one of the largest tornado outbreaks in U.S. history.
March 27 » A mob in Cincinnati, Ohio, attacks members of a jury which had returned a verdict of manslaughter in what was seen as a clear case of murder; over the next few days the mob would riot and eventually destroy the courthouse.
April 20 » Pope Leo XIII publishes the encyclical Humanum genus.
May 1 » The Federation of Organized Trades and Labor Unions demands the eight-hour work day in the United States.
November 1 » The Gaelic Athletic Association is set up in Hayes's Hotel in Thurles, County Tipperary.
December 6 » The Washington Monument in Washington, D.C., is completed.
Day of marriage December 7, 1911
The temperature on December 7, 1911 was between 0.1 °C and 7.5 °C and averaged 4.5 °C. There was 3.5 mm of rain. The average windspeed was 4 Bft (moderate breeze) and was prevailing from the south-southeast. Source: KNMI
April 8 » Dutch physicist Heike Kamerlingh Onnes discovers superconductivity.
May 15 » In Standard Oil Co. of New Jersey v. United States, the United States Supreme Court declares Standard Oil to be an "unreasonable" monopoly under the Sherman Antitrust Act and orders the company to be broken up.
May 19 » Parks Canada, the world's first national park service, is established as the Dominion Parks Branch under the Department of the Interior.
May 21 » President of Mexico Porfirio Díaz and the revolutionary Francisco Madero sign the Treaty of Ciudad Juárez to put an end to the fighting between the forces of both men, concluding the initial phase of the Mexican Revolution.
July 4 » A massive heat wave strikes the northeastern United States, killing 380 people in eleven days and breaking temperature records in several cities.
November 11 » Many cities in the Midwestern United States break their record highs and lows on the same day as a strong cold front rolls through.
Day of death April 9, 1947
The temperature on April 9, 1947 was between 1.1 °C and 9.4 °C and averaged 4.4 °C. There was 2.4 mm of rain during 3.5 hours. There was 7.3 hours of sunshine (54%). The average windspeed was 5 Bft (very strong wind) and was prevailing from the northwest. Source: KNMI
April 15 » Jackie Robinson debuts for the Brooklyn Dodgers, breaking baseball's color line.
August 14 » Pakistan gains Independence from the British Empire and joins the Commonwealth of Nations.
September 15 » Typhoon Kathleen hit the Kantō region in Japan killing 1,077.
October 14 » Chuck Yeager becomes the first person to exceed the speed of sound.
November 18 » The Ballantyne's Department Store fire in Christchurch, New Zealand, kills 41; it is the worst fire disaster in the history of New Zealand.
December 16 » William Shockley, John Bardeen and Walter Brattain build the first practical point-contact transistor.
When copying data from this family tree, please include a reference to the origin: Hans Weening, "Family tree Weening", database, Genealogy Online (https://www.genealogieonline.nl/stamboom-weening/I100977.php : accessed October 20, 2026), "Henderikus Veenstra (1884-1947)".
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